Nut Rust

Slang for having a pair of very dirty balls. Can be from excessive sweating or dirty activities, such as rolling around in the sand.

Frank:oh its been a long day, i could use a real good blowjob, and maybe some ball-sucking.

Jane:No way,get a god-damn shower, cause you got nut rust.

by Milkman2313 August 19, 2008